Glue applying apparatus for lumber gluing machine



J1me 23, 1953 v. J. WINKEL I 2,542,335

GLUE APPLYING APPARATUS FOR LUMBER GLUINC MACHINE Original Filed Sept.6, 1947 2 Sheets-Sheet l ll 38 m I lhlhm fi 7 36 40 F H i ,1!" I .5 46

I NVENTOR VI.CTOR J. WI NKEL g M W ATTORNEY 2,542,835 GLUE APPLYINGAPPARATUS FOR LUMBER cwmc MACHINE Original Filed se t. 6, 1947 a v. J.WINKEL June 23, 1953 2 Sheets-Sht 2 FIGS O l6 .J m

ATTORNEY Patented June 23, 1953 GLUE APPLYING APPARATUS FOR LUMBER GLUING MACHINE Victor J. Winkel, Portland, reg., assignor to Laminated LumberProducts, Inc., Oreg., a corporation of Oregon Portland,

Original application November 11, 1952, Serial N 0.

772,565, now Patent No. 2,617,456, dated November 11, 1952. Divided andthis application April 25, 1952, Serial No. 285,009

The present-application is a division of the application of Victor J.Winkel, Serial No. 772,565,

filed September 6, 1947, and which has matured to Patent No. 2.617,456,issued November 11, 1952. My present invention comprises a machine forgluing lumber scraps together to form large boards, thus providing meansto utilize Waste material in lumber mills or factories utilizing lumber.It is well known that in 'many industries scraps of lumber of goodquality, except that they are of irregular dimensions, are soldfor theirsalvage value or burned. The principal object of the present inventiontherefore is to reduce lumber wastage by utilizing mill scrap.

One object of the present invention is to provide large boards capableof being utilized as wall, ceiling or floor panels, or as the sides ofboxes or the like, and in many other applications where larger boardsthan normally avail- I able are desirable or useful. I thus am able to 1provide a product having great value from material normally wasted.

An object of the present invention is to provide means for forming acontinuous sheet of board material which may be cut into any desiredlengths, by joining small board sections of irregular lengths together.

A further object of the present invention is to provide .a new andimproved edge gluing mechanism for applying glue to the edges of aplurality of adjacent board sections which are to be joined edge toedge.

A further object of the present invention is to provide a boardfabricating machine in which boards are glued edge to edge, and in whichthe setting of the glue is achieved in rapid order.

A further object of the present invention is to provide a machine formaking boards of smaller board sections, which may be quickly and easilyadjusted in order to form boards of various widths.

The foregoing and other objects and advantages of the present inventionwill be more readily apparent from an inspection of the accompanyingdrawings taken in connection with the following specification whereinlike numerals refer to like parts throughout.

In the drawings Fig. 1 is a plan view of a portion of the presentinvention disclosing the assembling table and the edge gluing mechanism;

Fig. 2 is a side elevation of the mechanism disclosed in Fig. 1;

Fig. 3 is an enlarged detail view of the gluing mechanism takensubstantially along line 3-3 of Fig. 1; and g 4 Claims. (Cl. 118-205) 9motor for drivingthe belt I I (not shown).

Fig. 4 is an enlarged section taken along line 4 4 of Fig. 3.

The machine comprises an assembly section upon which is positioned awide endless belt I I extending over an end roller mounted upon a shaftl2: The belt II is driven bysuitable motive means (not disclosed) so asto have a lineal may be dropped sections of boards I5 of suitablestandard width and depth but of any irregular length. Adjacent the endof the belt Il and above the boards is positioned a driving roll I6having a rubberor canvas covering thereon which is driven by suitablemeans such as the sprocket chains I1 and gears l8, the chain extendingto suitable motivemeans such as the boards-are shoved forwardly from theend of belt II by the roller l6, across the top of intermediatesupporting plates and 2| between which are mounted a plurality of glueapplying members 22, being held down against any upward thrustingtendency of the glue applying members by a plurality of pressure shoes23.

The glue applying members each comprise a pair of flexible discsretained between collars 26 mounted upon a shaft 21 extendingtransversely of the machine. The outer surfaces of the discs 25 adjacenttheir peripheries are beveled toprovidefiat surfaces 28. The surfaces 28are immersed in adhesive contained within a trough 29 extendingtransversely of the machine. Any suitable adhesive may be positioned inthe trough but I prefer a type of adhesive which is thermo-setting. Theshaft 211s driven by suitable means such as the sprocket chain 30connectedto the feeding drive.

As the discs 25 rotate the surfaces 28 pick up adhesive which is evenlyspread by suitable spreaders mounted on the edge of the trough 29beneath the plate 20. The flat surfaces of the discs are so positionedas to extend upward,

The-

hesive applying members there are preferably positioned a plurality ofscraper members 39 mounted upon crossrods 40 so as to lie between theboard sections 15. The scraper members (Fig. 1) preferably compriseU-shaped springs with notched ends spread outwardly in order firmly tocontact the surfaces of the boards and spread the adhesive over thesurfaces thereof. After leaving the adhesive appliers the board sectionsare received on an intermediate table 45 provided with edge guidingmembers 46 which converge toward each other to an extent such that theboards are brought together to form a single board of the width of theplurality of boards.

After the completed board leaves the adhesive applying machine it may bepassed through any suitable adhesive setting machine such as show-n inthe parent patent, then through suitable transverse cutting mechanism,such as a flying shear or a flying rotary saw' (not herein illustrated),so as to becut into the desired lengths.

It is to be appreciated that modifications in detail and arrangement ofthe invention may ocour to those skilled in the art. All suchmodifications in detail, and modifications in arrangement of themachine, as come within the true spirit and scope of the appended claimsare considered tobe a part of my invention.

l. In a machine for making larger boards from smaller boards, anassembly table including a moving, supporting belt and a plurality ofparallel guides positioned thereover to provide channels in which thesmaller boards may be placed end-to-end in rows separated by the guides,and a plurality of adhesive applying means forwardly of said tableadjacent the ends of said guides, each of said means comprising a pairof flexible discs whose edges extend between adjacent rows of smallerboards and a wedge-shaped spreader extending between the flexible discsto spread the edges of said flexible discs into contact with 4 theadjacent faces of adjacent rows of smaller boards.

2. In a machine for making larger boards from smaller boards, anassembly table including feeding means and a plurality of parallelguides positioned to provide channels in which the smaller boards may beplaced substantially end-to-end in rows separated by the guides, and aplurality of adhesive applying means forwardly of said table adjacentthe ends of said guides, each of said applying means comprising a pairof flexible discs so mounted as to extend between adjacent rows ofsmaller boards and a wedge-shaped spreader disc extending between theflexible discs to spread the edges of said flexible discs into contactwith the adjacent faces of adjacent rows of smaller boards.

3. In a machine for making larger boards from smaller boards, anassembly table including guides positioned to provide channels in whichthe smaller boards may be placed substantially end-to-end in rowsseparated by the guides, and adhesive applying means forwardly of thesaid table adjacent the ends of said guide comprising a plurality ofpairs of flexible discs so mounted as to extend betwwn adjacent rows ofsmaller boards and a plurality of wedge-shaped spreader discs, eachextending between the edges of a pair of flexible discs to spread theedges of said flexible discs into contact with the adjacent faces ofadjacent rows of smaller boards.

4. Adhesive applying means for applying adhesive to the adjacentlongitudinal surfaces of a plurality of rows of boards for the purposeof joining said rows of boards to form a larger board, comprising aplurality of pairs of flexible discs, and wedge-shaped spreader discsextending between each pair of flexible discs to spread them intocontact with the boards.

VICTOR J. WINKEL.

No references cited.

